I have a GDS1052U oscilloscope from GW Instek. In the manual is mentioned about the probe compensation.
Does it matters if I make the probe compensation with the coupling on AC or DC ?
Does the wave forms from the attached screenshots look good ?

 

It may not make any difference for a 1kHz square-wave, but using the DC coupling is best.

Those screenshot waveforms both look good.

 

Thanks.
So it should be good if I made the compensation using AC coupling ?

PS I already made some important measurements and I need to know if the probes were correctly compensated using AC coupling.

 

Yes.

Here are a few examples of an old analog scope.

Normal Compensation:


Over Compensation or High Frequency Accentuation:


Under compensation or High Frequency Attenuation:


Ron

 

Does it matters if I make the probe compensation with the coupling on AC or DC ?

Theoretically you should make probe compensation with coupling on DC only.
It is important to have in view that with AC coupling signal always is distorted:

 

I re calibrated the probes using DC coupling.
Does the screenshots look good ?
I used 2 different probes.

I alreade made, yesterday, some important measurements (power supply noise and ripple and oscillation), so I need to know if the probes were correctly compensated.

 

I re calibrated the probes using DC coupling.

I alreade made, yesterday, some important measurements (power supply noise and ripple and oscillation), so I need to know if the probes were correctly compensated.

Did you have to change the compensation setting when you used DC coupling.
If so, then the readings with AC coupling calibration are suspect.

 

I did not changed any compensation settings from the probe.
More exactly, I did not rotated any screw on the probe.

 

I did not changed any compensation settings from the probe.
More exactly, I did not rotated any screw on the probe.

Then all your measurements should be okay.

 

Theoretically you should make probe compensation with coupling on DC only.

I alreade made, yesterday, some important measurements (power supply noise and ripple and oscillation), so I need to know if the probes were correctly compensated.

My post was not only about compensation, but mostly about measurements with AC coupling.
With AC coupling measurements, measured signal give off its direct component, and obtains distorted form on low frequencies.
For power supply noise and ripple and oscillation measurement use AC coupling is just essential.